Oiling device.



C. BALOUGH! OILING DEVICE APPLICATION FILED him/.1, 1913.

1313? l 11 1 Patented Apr. 27, 1915.

v lywewtoz Wu/m Y 3 A f W a Mum/y To all whom it may concern;

.'ing the wrist-pin connection 1 ton and accumulates in a recess 9 The object ofthe invention is .ing from carried-bythe gases escaping from the com cnanrlns emo ion, or srnmerrnnn,

OHIO, assrenon .ro 'THE- KnLLY-srmnermm) Moron 'rnucx comranr, or srmncrrnrn, 01110, A

CORPORATION 0F OHIO.

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v Specification of Letters Patent.

Application filed November 7, 1913. Serial No. 799,795..

Be it known that I, CHARLES Banoucrr, a citizen {of Austria-Hungary, residing at Springfield, in the county of Clark and State of, Ohio, and useful Improvements in, Oiling Devices, of which the followingis a specification.

This invention relates to devices tor -oilbetween the piston and connecting rod of an internal ex plosive engine.

the bearings of lubrication the wrist-pin with ample said bearings carbon and soot bustion chamber.

- In the accompanying drawings, Figure 1'.

is.a sectional viewof a piston, wrist-pin and connecting rod embodying ments. Fig. 2 is a section of a cylinder showing the piston in position therein.

Like parts are characters of reference in the several views. In the said drawings, 1 represents a hollow wrist-pin journale in inwardly ex* tending bearings 2 formed integral with'the piston 3 and having the usual connecting rod. 4 secured thereto. The bearings .are preferably plain bearings of the same material-as the piston, although if desired, they may be provided with any kind of bronze bushing. The oil which is'thrown uponthe walls of the cylinder 5 is swept or carried partially by the piston rings 6, 7 and 8, at the time of the downward stroke of the pisformed in each end ofthe wrist-pmQ Each lot the bearings is formed with a groove 10 and 11, which grooves start at the outer periphery of the piston and near the end of the bearing. accumulates in the recesses 9 will be caused to flow into these grooves 10 and 11 and thereby furnish lubricant for the wrist-pin. Gases which leak from the piston chamber 12 and which are parast the piston rings, tially stopped by a ring 18, can escape through the hollow wrist-pin have invented certain new openings to provide and to also provide for exclud- .side of said piston and my improverepresented by similarings 14 therein into the crank case. By this construction, it will be seen that the gases instead of forcing their way wrist-pin and its bearings, will find a ready escape through the hollow wrist-pin and therein so that the bon and soot being deposited in the bearings is eliminated; and, further, the danger of the pressure of the escaping gases throwing the oil out of viated.

Having 1: claim 1. In'an internal combustion engine, a cylinder and piston, bearings on said piston, a hollow wrist-pin rotatably mounted in said bearings and communicatingwith the outalso with rior thereof to permit the escape of gases therethrough.

2. In an internal combustion engine, a cylinder and a hollow piston, inwardly-extending bearings on said piston, a wrist-pin rotatably mounted in said bearings, said wrist-pin having .a gas passage-way which communicates with the exterior and interior of said piston. l 3. In an internal combustion engine,a cylinder and a hollow piston, bearings on'said piston, piston rings about said piston on either side of said bearings, and a wrist-pin rotatably mounted in said bearings, sai

wrist-pin having a communication withthe piston to perexterior and interior of said mit theescape of gases therethrough.

4. In aninternal combustion engine, a cylinder and its hollow piston, bearings carried by said piston, a wrist-pin rotatably mounted in said bearings, the ends of said wristpin being and oil passages in said bearings communicating with said recesses, said wrist-pin having a gas communication with the exterior and interior of said piston.

5. In an internal combustion engine, a cylinder and a hollow piston, bearings on sai piston, a hollow wrist-pin rotatably mount- PatentedApr. 2'3, 1915.

1 and open- 1 between the danger. of carthe bearings is likewise ob-- us described my invention, 1'

the inte formed with oil-receiving recesses,

.ycon- I n testimony whereof, I have hereunto s et v earings my hand this 30th day of October, 1913. ssagwways csmmunicating in sa ifil; iwmrings, a piston rod fixed ad 1th sad wrist-pm, sald b wing 0 .Y

' r v iiliitBWOit 0f the'walls sf said cyliw (JHARLED BALOUGH' 501"} (1321M hafiaw ist-ran having a gas Wiinesses: amnmuniaatizm wifih *bh ezrafierior and inte- Czms. I. WELGH. rim of said piama.

ESTHER E. PEER-1m. 

